<div id="basic-demo">
  <button mat-raised-button color="accent" (click)="startTour()">
    Start tour
  </button>
  <meter
    id="fuel"
    min="0"
    max="100"
    low="33"
    high="66"
    optimum="50"
    value="50"
  ></meter>
  <progress id="oxygen" max="100" value="70">70%</progress>
  <marquee id="status">All systems are running smoothly</marquee>
</div>
